javascript - How to prevent linefeed when hit enter on Firefox OS mobile phone -

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i want use return key submit something. how prevent linefeed. don't want produce '\r' or '\n'.

i used code like: 

if(e.keycode  == 13){     if(textcontent != ""){submit();}     //e.preventdefault();     //e.stoppropation();     e.returnvalue = false;     return false; }

i don't want make new row.

your code (you don't need e.returnvalue), have use on keydown event, not keyup.


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